
public class arrnumber {
    public static void number(int arr[]){
        System.out.print("[");
        for (int i = 0; i < arr.length; i++) {
         if(i == 4) {
             System.out.print(arr[i]);
         }else{
             System.out.print(arr[i] + ",");
         }
        }
        System.out.print("]");
    }
    public static void main(String[] args) {
        //设计一个方法用于数组遍历,要求遍历的结果是在一行上,例如[11,22,33,44,55]
       int arr[] = {11 , 22 , 33 , 44 , 55};
        System.out.println("数组的长度为" + arr.length);
        number(arr);


    }
}
